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Weld is a compiler and runtime for improving the performance of data-intensive applications. It enables powerful compiler optimizations and automatic parallelization across functions by expressing the core computations in libraries using a small common intermediate representation and a lazy runtime API.


Weld is integrated into many Java EE application servers such as WildFly, JBoss Enterprise Application Platform, GlassFish, Oracle WebLogic and others. Weld can also be used in a Servlet-only environment (Tomcat, Jetty) or plain Java SE environment.

Official website

Tutorial and documentation

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